Lamp-receptacle.



No. 889,322 4 PATENTED JUNE 2, 1908.

. v A. A. MOFPITT.

, LAMP REGEPTAGLE.

APPLICATION FILED MAY 3, 1907.

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ANDREW A. Morrrrr, on rsovmsnon, nncns ISLAND.

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Specification of Letters Patent.

- Patented June 2, recs.

Application filed may 8, 1907. Serial 1T0; 371,743.

To all whom it may concern:

Be it known that 1, ANDREW A. Morrrrr,

a citizen of the United States,"residing at Providence, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Lamp-Receptacles, of which the following is aspecification, reference being bad therein to the accompanying drawing.

This invention relates receptacles for electric object to providesdevice of this character to improvements in in which its electricconnections are insulated is provided with a ertures throug tom-portionand t rat the screw collar con tact is raised above the bottom andsupported is a top view of by being embedded in the walls of the same.Another feature is that the rece tacle cup its botnearthe top of the cupso as to positively prevent short-oircuiting by moistiirewhich maygather therein. 1

By my impr ved construction the-receptacle is adapte to be used out ofdoors on sign and decorative'work and may even be I set in an uprightposition and subjected to rains and other trying atmospheric conditionswithout the possibility of short-cm cuitin these and other objects inview, the

invention consists of certain novel features of construction, as will bemore fully described and particularly pointed out in the appendedclaims. g

In the accompanying drawings: Figure 1- the receptacle showing a portionof the wall broken away to better show the center contact plate. Fig.2-is a central sectional view on line 2-2 of Fig. 1.

Fig. 3.is a view of the receptacle partly broken away showing a sectionon line 3-3 of Fig. 1. Fig. 4-is a section through the walls of thereceptacle on line 44' of Fig. 1 showing the fastening bolts for thethreaded lam receiving collar. Fig. 5-is a to view of t 1e lampreceiving collar showing t e retaining cars projecting therefrom. Fig.6- is a section ot the lower part of the receptacle on the same plan asthat of Fig. 2', showing the wire connections as being made from thebottom of the receptacle instead of from the" to lteferringto thedrawings, at 1 is the cuplike receptacle which may be made of rubber,porcelain, fiber or any other suitable non conducting material. Thelower end of this receptacle is provided with four outwardly connectionis made lamps and has for its a double purpose, w

' extending ears 5, 6', 7 and 8,'ears 5 and 7 being pierced at 9-4) toreceive the fastening bolts or screws.

To the upper face of ear 6 '18 secured a contact strip which extends.

inward through the aperture 10 in the wall to the center boss 11, saidstrip bein provided with a spring contact lip 12 by w. "ch 2. throughthe center of the lamp. The outer end of this contact issecured positionby the retaining screw 13 which extends upward from the recess 14 in thebottom of said car. A binding screw 15 is also threaded through thiscontact strip to bind the circuit wire 16 in position. The threaded endof this binding screw projects down into the recessed portion 17 formedto receive it in the up er face of said ear. The plate 18 is secured tothe face of the 0 posite ear 8, the same being-also provide with abinding screw 19 to which the conductor wire 20 is secured. The threadedendof the binding screw projects down into the recess 21 provided in theupper face of this car to receive it, said plate being secured inposition by the long retainingscrew 22 assln upward from the recessedportion 23 I 1n the ottom of the ear 8.

A screw collar 24 has been provided as-a simpleand effective means forretaining the lam in this receptacle. This collar is prefcrab y made ofbrass or other suitable conducting material and is provided with cars25, 26 and27, saidears being preferably formed by cutting the walls ofthe collar down from the 11 same outward. hese ears are then pierced peredge and bending the v and threaded and the collar droppedinto positionin the upper end of said receptacle, the walls of which arecorrespondingly grooved at 28, 29 and 30 for the reception of said ears.In order to make a connection to this collar and thus to the side of thelamp fromlone of the conductor wires, I have provided a conductor plate31 which lays under the head of screw 22 and have assedthe screw 32 upthrough said plate t tough the wall of the receptacle and threaded itsupper end into the hp- 27 of the lamp receivzng collar, thereby causingsaid screw to serve ich is that of. assisting in retaining said collarin position and at the same time to serve as a conductor electriccurrent. To further secure this lamp contact collar in position, I haverevided two other retaining screws 33 an 34 each of which pass upwardthrough the walls for the 39 and 40 on the bottom of the feet 6 and Sand retain the samein position by means of ters Patent, is:

dint

of the race tacle in the manner best illustrated in 1g. 4 to securelybind this collar in osition.

1 essential feature of my improved construction is that the centerortion of this receptacle is cut away at its ottom end at 35 t erebyleaving only the four ears which serve as i'eet on which the same mayrest. The receptacle is also provided with apertures 36 and 37 (seeFigs. 1 and 3) through the bottom of the cup whereby the water may bereadily drained from the same. At 38 is an annular groove around theupper edge of the neck of the receptacle which is found most convenientfor the reception of a lamp shade.

In outside work and advertising signs it is found necessary that .theconnection to the lamp receptacle should be made through the bottominstead of the sides. I have therefore. rovided means in my rece taclewhereby tile connections may be ma e to the bottom as well as to thesides of the same, said bottom connection being best illustrated in Fig.6 in the drawings. It will be seen that it is only necessary to placecontact plates the retaining screws 13 and 22 which are made slightlylonger than those used when the contact is made on the sides asillustrated in Fig. 2, the binding screws 15 and 19 being the same inboth cases. I

My improved receptacle has many practical advantages over the oldconstruction, first, that all of the connections are insulated bybeingaplaced within the walls of the same; second, holes are provided,through the bottom of the cup for draining the water out of the same;third, the receptacle is set on feet to revent the accumulation of waterheneath it fourth, the lamp receiving collar is raised a considerabledistance above the bottom of the cup, all of which features areparticularly designed from a practical stand point to effectuallyprevent the short-circuiting when saidreceptacles are used out of doorsand are exposed to severeweather conditions.

Another and very ractical arrangement is the construction wgerebytheconnection to the receptacle may be made equally well from the bottom orfrom the sides of the same.

Having thus described my invention, what 'I claim as new and desire tosecureby Let- 1. A device for preventing short-circuiting of electriclamps, comprising a cup portion of non-conducting material, raised feeton which the cup may stand, a center contact, a lam receiving collar,and means within the wal s of said cup for retaining said collar inposition therein.

2. A device for preventing short-circuiting of electric lamps,comprising a cup portion of which the same may stand, a center contact,a lan'ip receiving collar, and means within the walls of said cup forretaining said collar in' position therein. I

A device for preventing short-circuiting of electric lamps, comprising acup portion oi non-conducting 'material, a lamp receiving collar ofconducting material having portions of its wall bent outward to formretaining ears, the walls of said cup being provided with apertures toreceive said ears, and means within the walls of said cup for engag-,ing said ears to retain said collar in position in the cup.

4. A device for presenting short-circuiting of electric lamps,comprising a cup portion of non-conducting material, said cup beingprovided with draining apertures through its bottom portion, raised.feetor bosses on which the same may stand, a center contact, a lampreceiving collar of conducting material having portions of its well bentoutward to form retaining ears, and means within the walls of said cupfor engaging said ears to retain said collar in position in the cup.

5.. A device for preventing short-circuiting oi electric lamps,comprising a cup portionof non-conducting material, a'center contact towhich a conductor wire may be'connected, at

lamp receiving collar, a contact plate to which a second conductorwiremay be connected, a screw within the Walls of the cup for retaining saidplate, a second screw within the walls of said cup threaded into. saidcollar for retaining the same in the cup, both of said screws beingelectrically connected to serve as a conductor from the last named lwire to the side of the lamp.

' 6.. 'A device for preventing short-circuitln of electric lamps,comprising a cup portion 0 non-conducting material, a center contact towhicha conductor wire may be connected, a lamp receiving collar ofconducting material having portions of its wall bent outward to formretaining ears, said collar and said center contact being located ondifferent horizontal planes whereby the are separated by anapproximately vertica space, a contact plate to which a second conductorwire may be connected, a screw withinthe walls of said cup threaded intoone of the ears of said coltion therein, and means whereby the wiresition therein, and means in the body of said connections to said cupmay be made either cup for retaining said collar in position therefromthe top or the bottomof the said feet. in, the body of the cup beingalso provided 8. A device for preventing short-circuiting with meanswhereby a shade may be readily 15 of electric lamps, comprising acupportion of attached thereto.

non-conducting material, said cup beingipro- In testimony whereof Iaffix my signature vided with draining apertures through its in presenceof two witnesses.

bottom portion, raised feet or bosses on AN DREW A. MOFFITT. which thesame may stand, a center contact, Witnesses:

a lamp receiving collar, means within the HOWARD E. BARLOW,

Walls of said cup for retaining said collar in po- E. I. OGDEN.

